Providing global customers with one-stop supply chain solutions for high-quality steel products
-
HOMENeed Custom Solutions for Your Industry? Get a QuoteNeed Custom Solutions for Your Industry? Get a Quote
Seamless steel pipe, SCH40, ASTM A106, DIN30670
Line Pipe is a type of steel pipe specifically designed for the transportation of oil, natural gas, water, slurry, and other fluids through pipeline systems.Classification :
PRODUCT DETAILS
Line Pipe is a type of steel pipe specifically designed for the transportation of oil, natural gas, water, slurry, and other fluids through pipeline systems. It is widely used in the oil and gas industry, petrochemical plants, power generation, water transmission, and offshore engineering.
Line pipes are manufactured to withstand high internal pressure, harsh environmental conditions, and long-distance transportation requirements. They are available in both seamless and welded forms and are produced in accordance with international standards to ensure safety, durability, and reliable performance.
Manufacturing Methods
Line pipes are manufactured using several production methods depending on the required diameter, wall thickness, and application.
1. Seamless Line Pipe (SMLS)
- Manufactured without a welded seam.
- Excellent pressure resistance and mechanical strength.
- Commonly used for high-pressure and critical applications.
2. Electric Resistance Welded (ERW) Line Pipe
- Produced by electrically welding the edges of steel strip.
- High dimensional accuracy and smooth surface.
- Suitable for low- and medium-pressure pipeline systems.
3. Longitudinal Submerged Arc Welded (LSAW) Line Pipe
- Manufactured from steel plates with a longitudinal weld.
- Suitable for large-diameter, high-pressure transmission pipelines.
4. Spiral Submerged Arc Welded (SSAW) Line Pipe
- Produced by spiral-forming steel strip and submerged arc welding.
- Economical for large-diameter pipelines.
- Commonly used in water transmission and long-distance pipeline projects.
Common Materials and Grades
According to API Specification 5L, common line pipe grades include:
Grade Typical Application Grade A Low-pressure pipelines Grade B General oil and gas transmission X42 Medium-strength pipelines X46 Oil and gas transportation X52 Long-distance transmission pipelines X56 High-pressure pipelines X60 Oil and gas transmission systems X65 High-strength transmission pipelines X70 Long-distance, high-pressure pipelines X80 Advanced high-strength pipeline systems Higher-grade pipes provide greater strength and are suitable for demanding operating conditions.
Common Standards
Line pipes are manufactured in accordance with internationally recognized standards, including:
- API Specification 5L – Line Pipe
- ISO 3183 – Petroleum and Natural Gas Industries – Steel Pipe for Pipeline Transportation Systems
- ASTM A53 – Carbon Steel Pipe
- ASTM A106 – Seamless Carbon Steel Pipe for High-Temperature Service
- ASME B36.10M – Welded and Seamless Wrought Steel Pipe
- EN 10208 – Steel Pipes for Pipelines
- GB/T 9711 – Steel Pipe for Pipeline Transportation Systems
Applications
Line pipes are widely used in:
- Crude oil transportation
- Natural gas transmission
- Refined petroleum product pipelines
- Water supply systems
- Slurry transportation
- Petrochemical plants
- Offshore oil and gas platforms
- Power generation facilities
- Hydrogen and carbon dioxide transportation (special pipeline systems)
Advantages
- High pressure resistance
- Excellent mechanical strength
- Good weldability
- Reliable corrosion protection (with external and internal coatings)
- Suitable for long-distance transportation
- Wide range of sizes and grades
- Long service life with low maintenance
Typical Coatings
To improve corrosion resistance, line pipes are often supplied with protective coatings, including:
- 3LPE (Three-Layer Polyethylene)
- 3LPP (Three-Layer Polypropylene)
- FBE (Fusion Bonded Epoxy)
- Coal Tar Epoxy
- Liquid Epoxy Coating
- Internal Flow Coating
Conclusion
Line Pipe is a critical component of modern pipeline infrastructure used for the safe and efficient transportation of oil, natural gas, water, and other fluids. Manufactured in accordance with international standards such as API 5L and ISO 3183, line pipes are available in seamless and welded forms with various strength grades to meet the demanding requirements of onshore and offshore pipeline projects. Their excellent mechanical properties, pressure resistance, and long service life make them the preferred choice for energy and industrial transportation systems.
CUSTOMER FEEDBACK
The company has established a rigorous quality management system, and all products have passed ISO 9001 international quality certification. It can also provide testing reports for multiple international standards such as API, ASTM, DIN, JIS, and GB. From raw material procurement and production supervision to outbound inspection, the entire process is traceable to ensure that every batch of products meets customer requirements.
PRODUCTION LINE
Steel Plate Production Line
Steel Bar Production Line
Steel Pipe Production Line
Steel Coil Production Line
CUSTOMER VISIT
Customer visit
Customer visit
Customer visit
Customer visit
Customer visit
Customer visit
Customer visit
Customer visit
Customer visit
Customer visit
FAQ
What are the advantages of our products?
Good equipment and experience team, quality assurance, support customzation, sufficient inventory and timely delivery.
How long is your delivery time?
If goods are available, it is usually 5-10 days. Or if the goods are not in stock, within 30 days, calculate by quantity.
Are you a trading company or a manufacturer?
We have our own factory.
What is your terms of payment ?
Can be negotiated by both parties,If you have another question,pls feel free to contact us as below.RELATED PRODUCTS
This series aluminum sheet, also called pure aluminum sheet, has the highest aluminum content among all the series produced by.Its aluminum content can be more than 99.00%.As no other techniques are involved in the production, the production procedure is single and the price is cheap. It is a commonly used aluminum sheet in conventional industries.The last two numbers in the serial number are used to determine the lowest aluminum content of this series. For example, in the 1050 series, the last two numbers are 50 and according to the corresponding international standard, the aluminum content has to reach 99.5% or more.
This kind of alloy is the most extensively used anti-rust aluminum and it has high strength, extraordinary fatigue resistance, excellent plasticity and corrosion resistance; it is non-heat treatable: it has high plasticity at annealed condition, good plasticity
SPCC carbon steel plate is generally used in the production of steel structures, vehicles, ships and bridges, and has good corrosion resistance and atmospheric corrosion resistance.
Galvalumed sheet, with 55% aluminum zinc alloy coating on the surface. The surface of the Galvalumed sheet presents a unique smooth, flat and gorgeous star, and the basic color is silver white. The special coating structure makes it have excellent corrosion resistance. The normal service life of the Galvalumed sheet can reach 25a, and the heat resistance is very good, which can be used in the high temperature environment of 315 ℃; The coating has good adhesion with the paint film, has good processing performance, and can be punched, sheared, welded, etc; The surface conductivity is very good.
Use of 2205 stainless steel coil: 1. The heater is generally used in the oil refining unit; 2. Chemical plant equipment pipeline; 3. Fast cooling cylinder for solid solution used in textile industry; 4. Seamless steel pipe for heat exchanger and condenser. 5. High pressure seamless steel pipe for food (gb-2000) is a high-quality carbon structural steel and alloy steel seamless steel pipe suitable for chemical equipment and pipes with working temperature of - 40~400 ° C and working pressure of 10~30ma. 6. Seamless steel pipes for geological drilling and oil drilling control. 7. Cracking pipe for petrochemical industry is used to transport high-temperature and high-pressure fluid on fertilizer equipment.
430 stainless steel is used for building decoration, fuel burner parts, household appliances and household appliances. 430F is a steel with free cutting property added to 430 steel, mainly used for automatic lathes, bolts and nuts. 430LX adds Ti or Nb to 430 steel to reduce the content of C, which improves the processability and welding performance. It is mainly used in hot water tanks, hot water supply systems, sanitary appliances, household durable appliances, bicycle flywheels, etc.
Galvanized pipe Hot diped ， Electroplating diped
Hot-dip galvanized steel pipes are widely used in the manufacturing industries of construction, machinery, coal mining, chemical industry, electric power, railway vehicles, automobile industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery, shed construction, etc.
Galvanized H-beam is a cross-sectional area distribution is more optimized, more reasonable than the economic section of high-efficiency profiles, because of its section and the English letter "H" the same name. Since all parts of the H-beam are arranged at right angles, the H-beam has the advantages of strong bending resistance, simple construction, cost saving and light structure in all directions, and has been widely used.
H-beam is a more optimized cross-sectional area distribution, more reasonable than the economic section of high-efficiency profiles, because of its section and the English letter "H" the same name. Since all parts of the H-beam are arranged at right angles, the H-beam has the advantages of strong bending resistance, simple construction, cost saving and light structure in all directions, and has been widely used.
H-beam is a new type of steel for economic construction. H-beam has economical and reasonable cross-sectional shape, good mechanical properties, uniform extension of each point on the cross-section and small internal stress during rolling. Compared with ordinary I-beam, H-beam has the advantages of large cross-sectional modulus, light weight and metal saving, which can reduce the building structure by 30-40%.
Low carbon material from which wire rod and round wire are produced in riots or cut rods. Standart: ASTM A510M. Standard specification for general requirements for carbon steel wire rod and round wire. Classification: Low-carbon steel.
Steel grade G10080 (SAE 1008) - low carbon material from which wire rod and round wire are produced in riots or cut rods. Standart: ASTM A510M. Standard specification for general requirements for carbon steel wire rod and round wire. Classification: Low-carbon steel.
Steel grade G10060 (SAE 1006) - low carbon material from which wire rod and round wire are produced in riots or cut rods. Standart: ASTM A510M. Standard specification for general requirements for carbon steel wire rod and round wire. Classification: Low-carbon steel.
Low Carbon Bright Alkaline Steel Wire
Low-carbon bright alkaline steel wire is a good general-purpose grade and is the most common type in daily life, such as hangers, electrical shelves, store displays and paper clips. It has good bending and flattening performance, is easy to form, and is conducive to welding.
Steel wire is one of the four major varieties of steel: plate, tube, profile and wire. It is a reprocessed product made of hot-rolled wire rod by cold drawing. According to the section shape, it mainly includes circle, square, moment, triangle, ellipse, flat, trapezoid, zigzag, etc.
High Carbon Spring Tempering Steel Wire
High carbon steel is used to make spring tempered carbon steel wire. Commonly used grades of spring steel wire do not have a specific chemical name, such as 1065 or 1080, which is common in other types of high carbon steel products.
Equivalent grade
UNS N04404
DIN W. Nr. 2.4867
Equivalent grade
UNS N04400
DIN W. Nr. 2.4360, 2.4361
Equivalent grade
UNS N04401
Title ： Monel 401/N04401
Equivalent grade
UNS N05500
DIN W. Nr. 2.4375
Equivalent grade
UNS N04401
Title ： Monel 401/N04401
Hastelloy：X,C-276,C-4,C-22,C-200
Incoloy：A286,25-6HN,27-7MMo,25-6Mo,20,28,330,800,800H, 825
Nickel：200,201,270
Equivalent grade
UNS N06617
DIN W. Nr. 2.4663A
Hastelloy：X,C-276,C-4,C-22,C-200
Incoloy：A286,25-6HN,27-7MMo,25-6Mo,20,28,330,800,800H, 825
Nickel：200,201,270GET A FREE QUOTE
Beijing Molong Petroleum Technology Co., Ltd. is a professional supplier specializing in the export of steel products, committed to providing global customers with high-quality steel products and one-stop supply chain solutions.
Get a Quote
